var currAd = 0;
var imgCnt = 3;
var intervalId = 0;


cycle();
intervalId = setInterval("cycle()", 5000);

function stop_cycle(bannId) {

	clearInterval(intervalId);

	document.getElementById('adButt0').setAttribute("class", "");
        document.getElementById('adButt1').setAttribute("class", "");
        document.getElementById('adButt2').setAttribute("class", "");

        var currButt = "adButt" + bannId;
        document.getElementById(currButt).setAttribute("class", "active");


	document.getElementById('adBanner').src=img[bannId];
	document.getElementById('adBanner').alt=alt[bannId];
	document.getElementById('adBanner').title=alt[bannId];
        document.getElementById('adLink').href=lnk[bannId];

}

function cycle() {
	if (currAd == imgCnt) {
		currAd = 0;
	}
	document.getElementById('adButt0').setAttribute("class", "");
        document.getElementById('adButt1').setAttribute("class", "");
        document.getElementById('adButt2').setAttribute("class", "");

	var currButt = "adButt" + currAd;
        document.getElementById(currButt).setAttribute("class", "active");

	document.getElementById('adBanner').src=img[currAd];
    document.getElementById('adBanner').alt=alt[currAd];
	document.getElementById('adBanner').title=alt[currAd];	
	document.getElementById('adLink').href=lnk[currAd];
	currAd++;
}